Table IV. Kinetic parameters of ShMOMT1 with myricetin as a substrate compared with other 3′,5′-OMT enzymes that exhibit activity with myricetin.

Enzyme	Km	Kcat	Kcat/Km
	μm	s−1	μm−1 s−1
ShMOMT1	0.46	1.59	3.46
AtOMT1a	3.38	0.01	3 × 10-3
TaOMT2b	6.59	8.78	1.33
ROMT-17c	44	0.04	9 × 10-4
ROMT-15c	80	0.22	2.74 × 10-3

^aMuzac et al. (2000).

^bZhou et al. (2006).

^cLee et al. (2008).